CN220332405U - Quick-connection-hanging-and-unbinding-type storehouse-passing leather bag - Google Patents

Abstract

The utility model discloses a quick-connection and disconnection warehouse-through leather bag, which belongs to the technical field of vehicle warehouse-through connection and comprises a mounting frame and a folding shed assembly, wherein the mounting frame is connected with a vehicle body; the screw rod, the connecting plate and the connecting column are sequentially connected into a whole and coaxially arranged, the pressing block is movably connected with the connecting column, the limiting rod is positioned on the same side of the connecting column and on the connecting plate, the limiting rod is used for adjusting the rotation state of the pressing block, the folding shed assembly is in compression fit with the mounting frame through the pressing block, the limiting rod and the screw rod, and the mounting frame is connected with a vehicle body through bolts. According to the utility model, the folding shed component, the mounting frame and the mounting frame are quickly connected and unbinding with the vehicle body through the quick connecting piece, so that the working efficiency is improved, and the operation is convenient.

Description

Quick-connection-hanging-and-unbinding-type storehouse-passing leather bag

Technical Field

The utility model belongs to the technical field of vehicle cabin connection, and particularly relates to a cabin passing leather bag capable of being quickly connected and disconnected.

Background

The cabin passing leather bag is used for communicating the cab with the upper box body, is generally suitable for communicating the headstock and the carriage of the split type motor home, and is used for enabling drivers and passengers to pass through quickly.

The cabin-passing leather bag mainly comprises a mounting frame and a folding shed component, wherein the mounting frame is connected with a vehicle body through bolts, the folding shed component is generally fixed with the mounting frame through a rotary pressing block, and the mounting process of the existing cabin-passing leather bag is as follows: the mounting frame is provided with a circle of bolt holes, the mounting frame is connected with the vehicle body through bolts, then the folding shed component is mounted on the mounting frame and fixed through pressing blocks, and the folding shed component and the mounting frame are pressed by rotating the pressing blocks for one circle in the process; when the folding shed component and the mounting frame are required to be removed, a circle of pressing blocks are required to be unscrewed, and each bolt is respectively unscrewed. The installation and the de-knitting of the whole bin-passing leather bag need to consume a great deal of time, and meanwhile, the bolts, the pressing blocks and other tiny parts are more, so that the operation and the taking are inconvenient, and the connection and the de-knitting can not be completed rapidly.

Therefore, the through-cabin leather bag capable of being quickly connected and disconnected is required, the steps of connecting and disconnecting are simplified, the efficiency is improved, and the operation is convenient.

Disclosure of Invention

The utility model aims to provide a through-bin leather bag capable of being quickly connected, disconnected and woven, so as to solve the problems in the background technology.

The aim of the utility model is realized by the following technical scheme:

the quick-connection and disconnection warehouse-through leather bag comprises a mounting frame and a folding shed component, wherein the mounting frame is connected with a vehicle body, the folding shed component is connected with the mounting frame, a quick connecting piece is arranged between the folding shed component and the mounting frame, and the quick connecting piece comprises a screw rod, a connecting plate, a connecting column, a pressing block and a limiting rod;

the screw rod, the connecting plate and the connecting column are sequentially connected into a whole and coaxially arranged, the pressing block is movably connected with the connecting column, the limiting rod is positioned on the same side of the connecting column and on the connecting plate, the limiting rod is used for adjusting the rotation state of the pressing block, the folding shed assembly is in compression fit with the mounting frame through the pressing block, the limiting rod and the screw rod, and the mounting frame is connected with a vehicle body through bolts.

Further, the mounting frame is of a quadrilateral structure, the mounting frame comprises a mounting groove and a mounting plate, the mounting groove is fixed on the mounting plate, the mounting groove is located at the edge of the mounting plate, a plurality of screw holes are formed in the mounting plate, the screw holes are matched with the screw rods, and the mounting plate is connected with a vehicle body through the screw rods and the screw holes.

Further, the folding shed assembly comprises an inner shed cloth body, an outer shed cloth body and a butt joint frame, wherein the butt joint frame is located at the middle part of one end of the folding shed assembly, the size of the butt joint frame is matched with the size of the mounting groove, the folding shed assembly is matched with the mounting groove through the butt joint frame and the mounting groove, a clamping seam is formed in the joint of the mounting frame and the inner shed cloth body, the size of the clamping seam is matched with the size of the pressing block, the quick connecting piece is located at one side of the inner shed cloth body, and the height of the pressing block is matched with the height of the connecting frame after the mounting groove is formed in the connecting frame.

Further, the briquetting is L-shaped structure, the briquetting includes minor face and long limit, the bilateral symmetry of minor face is equipped with the spacing groove, the position of spacing groove with the gag lever post corresponds, the size of spacing groove with the diameter looks adaptation of gag lever post.

Further, the gag lever post includes body of rod and chuck, the chuck is located the bottom of body of rod, the diameter of chuck is greater than the diameter of body of rod, the connecting plate is equipped with the standing groove, the internal diameter of standing groove with the diameter looks adaptation of chuck, the notch diameter of standing groove with the diameter looks adaptation of body of rod, chuck extremely the distance of body of rod bottom is less than the degree of depth of standing groove, the gag lever post passes through chuck with the standing groove with connecting plate joint.

Further, a first spring is arranged in the placing groove, the spring is sleeved on the rod body at the bottom of the chuck, and the length of the first spring is larger than that of the rod body at the bottom of the chuck.

Further, the top of spliced pole is equipped with the gland, the diameter of gland is greater than the diameter of spliced pole, the gland with be equipped with the second spring between the briquetting, the second spring cover is established on the spliced pole, the diameter of second spring is less than the diameter of gland.

Further, a limiting ring is arranged between the connecting column and the connecting plate, the diameter of the limiting ring is larger than that of the connecting column, and the height of the pressing block is adjusted through the limiting ring.

Further, a pressing rod is arranged on the side wall of the rod body and located above the chuck, and the pressing rod is perpendicular to the rod body.

Further, a sealing rubber strip is arranged between the connecting frame and the mounting groove, and the sealing rubber strip is matched with the mounting groove.

The beneficial effects of the utility model are as follows:

1) The folding shed assembly is quickly connected with the mounting frame and the vehicle body through the quick connecting piece, so that the working efficiency is improved, and the operation is convenient. The pressing is completed by rotating the pressing block, and the screw rod is rotated by abutting the pressing block with the limiting rod.

2) The air tightness of the leather bag of the through bin is improved. Can compress tightly the bellows subassembly with the installation piece through the briquetting, still be equipped with joint strip in butt joint frame and the mounting groove simultaneously, further improved sealed effect.

Drawings

FIG. 1 is a side view of a quick hitch-unbinding through-the-cabin leather bag of the present utility model;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;

FIG. 3 is a front view of a quick hitch-unbinding through-the-bin leather bag according to the present utility model;

FIG. 4 is a schematic view of a mounting frame of the present utility model;

FIG. 5 is a schematic view of the installation of the mounting frame and quick connect according to the present utility model;

FIG. 6 is a schematic view of a bellows assembly of the present utility model;

FIG. 7 is an enlarged partial schematic view at B in FIG. 6;

FIG. 8 is a schematic view of a quick connector according to the present utility model;

FIG. 9 is a schematic view of a screw, a connecting plate and a connecting column according to the present utility model;

FIG. 10 is a schematic view of a stop lever of the present utility model;

FIG. 11 is a schematic view of a short side pressing mounting groove according to the present utility model;

FIG. 12 is a schematic view of the utility model with the short side away from the mounting slot;

FIG. 13 is a schematic view of the utility model showing the abutment of the limit groove and the limit bar for unscrewing the screw;

FIG. 14 is a schematic view of the present utility model in which a limit groove abuts a limit rod for tightening a screw;

in the figure, 1-bellows assembly, 101-inner bellows cloth body, 102-outer bellows cloth body, 103-butt joint frame, 104-clamping seam, 2-mounting frame, 201-mounting groove, 202-mounting plate, 203-screw hole, 3-quick connector, 301-screw, 302-connecting column, 303-connecting plate, 3031-placing groove, 3032-first spring, 304-stop lever, 3041-rod body, 3042-chuck, 3043-compression bar, 305-pressing block, 3051-short side, 3052-long side, 3053-stop groove, 306-pressing cover, 307-second spring, 308-stop ring, 4-vehicle body and 5-sealing rubber strip.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

Referring to fig. 1-14, the present utility model provides a technical solution:

as shown in fig. 1-14, the quick-connection and disconnection warehouse-through leather bag comprises a mounting frame 2 and a folding shed assembly 1, wherein the mounting frame 2 is connected with a vehicle body 4, the folding shed assembly 1 is connected with the mounting frame 2, a quick connecting piece 3 is arranged between the folding shed assembly 1 and the mounting frame 2, and the quick connecting piece 3 comprises a screw 301, a connecting plate 303, a connecting column 302, a pressing block 305 and a limiting rod 304;

the screw 301, the connecting plate 303 and the connecting column 302 are sequentially connected into a whole and coaxially arranged, the pressing block 305 is movably connected with the connecting column 302, the limiting rod 304 is positioned on the connecting plate 303 on the same side of the connecting column 302, the limiting rod 304 is used for adjusting the rotation state of the pressing block 305, the bellows assembly 1 is in press fit with the mounting frame 2 through the pressing block 305, the limiting rod 304 and the screw 301, and the mounting frame 2 is in bolt connection with the vehicle body 4.

Through the technical scheme, the installation frame 2 and the vehicle body 4 can be connected through the screw 301 of the quick connecting piece 3 in a threaded manner, then the bellows assembly 1 is arranged on the installation frame 2, and the bellows assembly 1 and the installation frame 2 are tightly pressed through the pressing block 305 on the quick connecting piece 3 so as to complete quick connection and hanging of the cabin-passing leather bag. Because the quick connecting piece 3 is an integral piece, the compression of the folding shed component 1 and the mounting frame 2 can be completed through the quick connecting piece 3, and the fixation of the mounting frame 2 and the vehicle body 4 can be completed, so that the connection and the unbinding of the mounting frame 2 and the folding shed component 1 are quick and efficient, and meanwhile, the integral structure reduces the installation of a plurality of parts and is easy to store.

Further, the mounting frame 2 is of a quadrilateral structure, the mounting frame 2 comprises a mounting groove 201 and a mounting plate 202, the mounting groove 201 is fixed on the mounting plate 202, the mounting groove 201 is located at the edge of the mounting plate 202, a plurality of screw holes 203 are formed in the mounting plate 202, the screw holes 203 are matched with the screw rods 301, and the mounting plate 202 is connected with the vehicle body 4 through the screw rods 301 and the screw holes 203.

By the above-described technical solution, the mounting frame 2 is attached to the vehicle body 4, the passage formed in the middle of the mounting plate 202 is aligned with the passage opening in the vehicle body 4, and then the mounting plate 202 is fixed to the vehicle body 4 by the screw 301.

Further, the bellows assembly 1 includes interior canopy cloth body 101, outer canopy cloth body 102 and butt joint frame 103, butt joint frame 103 is located the one end middle part of bellows assembly 1, the size of butt joint frame 103 with the size looks adaptation of mounting groove 201, bellows assembly 1 pass through butt joint frame 103 with mounting groove 201 with mounting frame 2 joint, mounting frame 2 with the junction of interior canopy cloth body 101 is equipped with joint 104, the size of joint 104 with the size looks adaptation of briquetting 305, quick connector 3 is located one side of interior canopy cloth body 101, the height of briquetting 305 with the height looks adaptation after the mounting groove 201 is put into to butt joint frame 103.

Through the above technical scheme, referring to fig. 2, after the mounting frame 2 and the vehicle body 4 are fixed, one end of the bellows assembly 1 is in butt joint with the mounting groove 201 on the mounting frame 2 through the butt joint frame 103, and the other end of the bellows assembly 1 can be fixed on the vehicle body 4 at the other end, and a circle of butt joint frame 103 can be further arranged to be connected with the vehicle body 4 through the mounting frame 2. The folding shed assembly 1 is formed by an inner shed cloth body 101 and an outer shed cloth body 102 to form a double-layer structure, has a better sound insulation and heat insulation effect, and can be deformed to a certain extent through the folding shed assembly 1 to be more suitable for a running vehicle body 4. After the docking frame 103 is inserted into the mounting groove 201, the quick connector 3 located on the mounting plate 202 rotates the short side 3051 of the pressing block 305, so that the short side 3051 is inserted into the clamping slot 104, the docking frame 103 is pressed in the mounting groove 201, and the docking frame 103 cannot be separated, so that the connection between the bellows assembly 1 and the mounting frame 2 is completed.

Further, the pressing block 305 is in an L-shaped structure, the pressing block 305 includes a short side 3051 and a long side 3052, two sides of the short side 3051 are symmetrically provided with a limiting groove 3053, a position of the limiting groove 3053 corresponds to the limiting rod 304, and a size of the limiting groove 3053 is matched with a diameter of the limiting rod 304.

Further, the limiting rod 304 includes a rod body 3041 and a chuck 3042, the chuck 3042 is located at the bottom of the rod body 3041, the diameter of the chuck 3042 is larger than that of the rod body 3041, the connecting plate 303 is provided with a placing groove 3031, the inner diameter of the placing groove 3031 is matched with the diameter of the chuck 3042, the diameter of a notch of the placing groove 3031 is matched with the diameter of the rod body 3041, the distance from the chuck 3042 to the bottom of the rod body 3041 is smaller than the depth of the placing groove 3031, and the limiting rod 304 is clamped with the connecting plate 303 through the chuck 3042 and the placing groove 3031.

Through the above technical scheme, referring to fig. 11, after the docking frame 103 is inserted into the mounting groove 201, since the pressing block 305 is movably connected with the connecting column 302, the short side 3051 is rotated to insert into the clamping slot 104, so that the short side 3051 is located right above the docking frame 103 and the mounting groove 201, and the docking frame 103 cannot be separated from the mounting groove 201, thereby completing fixation; referring to fig. 12, when the docking frame 103 and the mounting groove 201 need to be released, the short side 3051 is rotated 90 ° counterclockwise, so that the short side 3051 is parallel to the mounting groove 201, and at this time, the docking frame 103 can be released from the mounting groove 201 to complete the de-braiding; referring to fig. 13, when the bellows assembly 1 is removed from the mounting frame 2, the mounting frame 2 is further removed from the vehicle body 4, the short side 3051 is continuously rotated 90 ° anticlockwise, at this time, the limit groove 3053 on one side of the short side 3051 is abutted with the limit rod 304, and when the rotation is continuously performed anticlockwise, the press block 305 drives the limit rod 304 and the connecting plate 303 abutted with the limit rod 304 to integrally rotate, and then the screw 301 is integrally driven to rotate by the press block 305, at this time, the screw 301 can be unscrewed by rotating the long side 3052, the arm of force is increased by rotating the long side 3052, the work of unscrewing the screw 301 is saved, and the mounting frame 2 is rapidly removed from the vehicle body 4; referring to fig. 14, when the mounting frame 2 needs to be fixed to the vehicle body 4, the screw 301 is aligned to the screw hole 203, and meanwhile, the limit groove 3053 on the outer side of the short side 3051 abuts against the limit rod 304, and at this time, the long side 3052 is rotated clockwise, so that the limit rod 304 can be driven by the short side 3051, and the screw 301 is driven to complete the screwing operation. Through setting up of briquetting 305, gag lever post 304 and screw 301, with the function integration as an organic whole of briquetting 305 and screw 301, reduce the past storehouse and link the in-process and both need screw connection installing frame 2 and automobile body 4, again need briquetting 305 to push down the loaded down with trivial details step of folding canopy subassembly 1 and installing frame 2, with compressing tightly and the fixed combination of bolt as an organic whole, saved dismouting efficiency.

Further, a first spring 3032 is disposed in the placement groove 3031, the spring is sleeved on the rod body 3041 at the bottom of the chuck 3042, and the length of the first spring 3032 is greater than the length of the rod body 3041 at the bottom of the chuck 3042.

By the above-mentioned technical solution, the bottom of the rod body 3041 of the limit lever 304 is not in contact with the floor of the placement tank 3031, but is suspended in the placement tank 3031 by the first spring 3032, while the chuck 3042 is locked in the placement tank 3031 by passing through the narrowed notch. The chuck 3042 can compress the first spring 3032 by pressing the rod 3043 downwards 3041, so that the height of the limiting rod 304 is reduced, the limiting rod can not contact with the pressing block 305, and the pressing block 305 can conveniently rotate freely; the rod body 3041 is released, under the action of the elastic force of the first spring 3032, the limiting rod 304 is jacked up, the chuck 3042 is abutted with the notch of the placing groove 3031, the chuck 3042 cannot deviate from, the limiting rod 304 is at the highest position and can be contacted with the pressing block 305, and the limiting rod 304 can be abutted with the limiting groove 3053.

Further, a gland 306 is disposed at the top of the connecting column 302, the diameter of the gland 306 is larger than that of the connecting column 302, a second spring 307 is disposed between the gland 306 and the pressing block 305, the second spring 307 is sleeved on the connecting column 302, and the diameter of the second spring 307 is smaller than that of the gland 306.

Through the above technical scheme, the gland 306 is fixed with the connecting column 302, the second spring 307 is located between the gland 306 and the press block 305 and is in a compressed state, when the press block 305 is located above the mounting groove 201 to compress the docking frame 103 and the mounting groove 201, the press block 305 is pressed by the elastic force of the first spring 3032, so that the press block 305 is tightly attached to the docking frame 103 and the mounting groove 201, and the docking frame 103 is prevented from being separated from the mounting groove 201 due to loosening of the press block 305.

Further, a limiting ring 308 is disposed between the connecting post 302 and the connecting plate 303, the diameter of the limiting ring 308 is larger than that of the connecting post 302, and the height of the pressing block 305 is adjusted by the limiting ring 308.

Through the technical scheme, the limiting ring 308 is sleeved on the connecting column 302 and can be welded and fixed with the connecting column 302 or connected with the connecting column by threads, the bottom surface of the pressing block 305 can be located on the top surface of the mounting groove 201 through changing the height or the position of the limiting ring 308, interference between the pressing block 305 and the mounting groove 201 is avoided, and after the docking frame 103 is inserted into the mounting groove 201, the pressing block 305 can be pressed on the docking frame 103 and the mounting groove 201 conveniently, so that the pressing and fixing are completed.

Further, a side wall of the rod 3041 is provided with a compression bar 3043, the compression bar 3043 is located above the chuck 3042, and the compression bar 3043 is perpendicular to the rod 3041.

Through above-mentioned technical scheme, through dial down depression bar 3043 for body of rod 3041 moves in to standing groove 3031, compresses first spring 3032, reduces the height of gag lever post 304, makes briquetting 305 can not contact with gag lever post 304, makes things convenient for the rotation of gag lever post 304. When the compression bar 3043 is released, under the elastic force of the first spring 3032, the limit rod 304 is jacked up, the chuck 3042 is abutted with the notch of the placement groove 3031, the chuck 3042 cannot be separated, the limit rod 304 is at the highest position and can be in contact with the pressing block 305, and the limit rod 304 can be abutted with the limit groove 3053.

Further, a sealing rubber strip 5 is arranged between the butt joint frame 103 and the mounting groove 201, and the sealing rubber strip 5 is matched with the mounting groove 201.

Through above-mentioned technical scheme, can play better sealed and waterproof effect through joint strip 5.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims (10)

1. The utility model provides a link up fast and link up logical storehouse leather bag of unbinding, includes installing frame (2) and bellows subassembly (1), installing frame (2) are connected with automobile body (4), bellows subassembly (1) with installing frame (2) are connected, its characterized in that: a quick connecting piece (3) is arranged between the folding shed assembly (1) and the mounting frame (2), and the quick connecting piece (3) comprises a screw rod (301), a connecting plate (303), a connecting column (302), a pressing block (305) and a limiting rod (304);

screw rod (301), connecting plate (303), spliced pole (302) connect gradually as an organic wholely and coaxial arrangement, briquetting (305) with spliced pole (302) swing joint, gag lever post (304) are located spliced pole (302) homonymy on connecting plate (303), gag lever post (304) are used for the adjustment briquetting (305) rotation state, bellows subassembly (1) are through briquetting (305) with installation frame (2) clamp fit, installation frame (2) are through briquetting (305), gag lever post (304) and screw rod (301) and automobile body (4) bolted connection.

2. The rapid-ligature unbinding through-warehouse leather bag according to claim 1, wherein: the mounting frame (2) is of a quadrilateral structure, the mounting frame (2) comprises a mounting groove (201) and a mounting plate (202), the mounting groove (201) is fixed on the mounting plate (202), the mounting groove (201) is located at the edge of the mounting plate (202), a plurality of screw holes (203) are formed in the mounting plate (202), the screw holes (203) are matched with the screw rods (301), and the mounting plate (202) is connected with a vehicle body (4) through the screw rods (301) and the screw holes (203).

3. The rapid-ligature unbinding through-warehouse leather bag according to claim 2, wherein: the folding shed assembly (1) comprises an inner shed cloth body (101), an outer shed cloth body (102) and a butt joint frame (103), the butt joint frame (103) is located at the middle part of one end of the folding shed assembly (1), the size of the butt joint frame (103) is matched with the size of the mounting groove (201), the folding shed assembly (1) is matched with the mounting frame (2) in a clamping mode through the butt joint frame (103) and the mounting groove (201), clamping joints (104) are formed in the joint of the mounting frame (2) and the inner shed cloth body (101), the size of the clamping joints (104) is matched with the size of the pressing block (305), the quick connecting piece (3) is located on one side of the inner shed cloth body (101), and the height of the pressing block (305) is matched with the height of the butt joint frame (103) after being placed in the mounting groove (201).

4. The rapid-ligature unbinding through-warehouse leather bag according to claim 1, wherein: the briquetting (305) is L-shaped structure, briquetting (305) include minor face (3051) and long limit (3052), the bilateral symmetry of minor face (3051) is equipped with spacing groove (3053), the position of spacing groove (3053) with gag lever post (304) is corresponding, the size of spacing groove (3053) with diameter looks adaptation of gag lever post (304).

5. The rapid-ligature unbinding through-warehouse leather bag according to claim 1, wherein: the limiting rod (304) comprises a rod body (3041) and a chuck (3042), the chuck (3042) is arranged at the bottom of the rod body (3041), the diameter of the chuck (3042) is larger than that of the rod body (3041), a placing groove (3031) is formed in the connecting plate (303), the inner diameter of the placing groove (3031) is matched with the diameter of the chuck (3042), the notch diameter of the placing groove (3031) is matched with the diameter of the rod body (3041), the distance from the chuck (3042) to the bottom of the rod body (3041) is smaller than the depth of the placing groove (3031), and the limiting rod (304) is clamped with the connecting plate (303) through the chuck (3042) and the placing groove (3031).

6. The rapid link unbinding through-warehouse leather bag according to claim 5, wherein: the novel clamping chuck is characterized in that a first spring (3032) is arranged in the placing groove (3031), the spring is sleeved on a rod body (3041) at the bottom of the chuck (3042), and the length of the first spring (3032) is larger than that of the rod body (3041) at the bottom of the chuck (3042).

7. The rapid-ligature unbinding through-warehouse leather bag according to claim 1, wherein: the top of spliced pole (302) is equipped with gland (306), the diameter of gland (306) is greater than the diameter of spliced pole (302), gland (306) with be equipped with between briquetting (305) second spring (307), second spring (307) cover is established spliced pole (302), the diameter of second spring (307) is less than the diameter of gland (306).

8. The rapid-ligature unbinding through-warehouse leather bag according to claim 1, wherein: a limiting ring (308) is arranged between the connecting column (302) and the connecting plate (303), the diameter of the limiting ring (308) is larger than that of the connecting column (302), and the height of the pressing block (305) is adjusted through the limiting ring (308).

9. The rapid link unbinding through-warehouse leather bag according to claim 5, wherein: the side wall of the rod body (3041) is provided with a compression bar (3043), the compression bar (3043) is located above the chuck (3042), and the compression bar (3043) is perpendicular to the rod body (3041).

10. A rapid link unbinding through-warehouse leather bag according to claim 3, wherein: and a sealing rubber strip (5) is arranged between the butt joint frame (103) and the mounting groove (201), and the sealing rubber strip (5) is matched with the mounting groove (201).